SECTION 07 72 36

SMOKE VENTS

PART 1 - GENERAL

1.1SUMMARY

  1. Section includes:
  2. Smoke Vents for emergency heat and smoke removal.
  3. Acoustical STC48 smoke ventsare sound transmission class rated for stages and theaters.
  4. Acoustical STC50 smoke vents meet IBC 1206 code requirements for sound transmission class. Ideal for building applications requiring superior sound control and thermal performance.

1.2COORDINATION

  1. Coordinate layout and installation of smoke vents with roofing membrane and base flashing andinterfacing and adjoining construction to provide a watertight installation.
  2. Coordinate dimensions with rough-in information or Shop Drawings of equipment to be supported.

1.3SUBMITTALS

  1. Shop Drawings: Indicate configuration and dimensions, show components, adjacent construction, required clearances and tolerance and other affected work.
  2. Vent Units: Show types, elevations, thickness of metals, and full size profiles.
  3. Hardware: Show materials, finishes, locations of fasteners, types of fasteners, locations and types of operating hardware, and details of installation.
  4. General: Show connections of units and hardware to other work. Include schedules showing location of each type and size of unit.
  5. Product Data: Manufacturer’s technical data for each type of vent, including setting drawings, templates, finish requirements, and details of anchorage devices.
  6. Contract Installation and Closeout Submittals
  7. Installation, Operating and Maintenance manuals

1.4Quality Assurance

  1. Regulatory Requirements:
  2. International Building Code for venting requirements
  3. IBC Section 410 for Stages and Platforms
  4. IBC Section 910 for Factory and Storage occupancies
  5. IBC Section 1207 Sound Transmission
  6. Underwriters Laboratories Inc, UL 793 Listed for Heat and Smoke Vents
  7. Reference NFPA 204 for general maintenance of smoke vents.
  8. ASTM E 90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
  9. ASTM E 1332 Standard Classification for Rating Outdoor-Indoor Sound Attenuation

1.5DELIVERY, STORAGE, and HANDLING

  1. Deliver materials to Project site ready use.
  2. Exercise proper care in handling of Work so as not to disrupt finished surfaces.
  3. Store materials under cover in a dry and clean location off the ground.

1.6WARRANTY

  1. Provide manufacturer's standard 5 year warranty. Smoke vents shall be free from manufacturing defects in materials and fabrication for a period of 5 years from the date of shipment. Should a product fail to function in normal use within this period, manufacturer shall furnish a replacement or new part at Nystrom’s discretion.

PART 2 - PRODUCTS

2.1MANUFACTURER

  1. Nystrom Inc

9300 73rd Ave N

Minneapolis, MN 55428

Toll Free Phone: 800-547-2635

Direct Phone: 763-488-9200

2.2AcousticalSTC48 Smoke Vents

  1. Description: Nystrom model SVX Acoustical Series smoke vents are STC 48 rated per ASTM E90 and OITC 36 rated per ASTM E 1332, as certified by an independent test laboratory. Sizes available in double door and quad door construction
  2. Fabrication:
  3. Cover Assembly: 14 gage galvanneal steel cover and liner. Cover reinforced to meet 40psf live load. Acoustical insulation with sound mat within 3 1/8” thick covers provides total thermal resistance R-10.
  4. Curb/Frame: 14gage galvanneal steel curb. 12” high double wall curb with EX tab counterflashing and5½” mounting flange with ½” diameter holes. Acoustical insulation with sound mat contained within 2 ¾” thick curb provides total thermal resistance R-10.
  5. Finish: Cover exterior is ANSI 70 Gray powder coat, cover interior is Black powder coat finish. Curb is Black powder coat finish.
  6. Latch: Positive hold zinc plated steel rotary latch assembly designed to hold covers closed against 90psf wind uplift. Upon latch releases, vent covers are closed manually at rooftop level.
  7. Latch released manually via internal and external pull handles with cables.
  8. Latch released automatically by UL 33 Listed fusible melt-out link at temperature [165F, 212F, 280F, 350F, 360F, 370F, 386F 450F].
  9. Optional latch release with electrical Belimo motor actuator[ 24VDC/AC, 110VAC].
  10. Springs: Gas spring with integrated damper designed to open vent covers automatically against 10 psf snow load.
  11. Hinges: 304 stainless steel heavy duty butt hinge with ¼” pin.
  12. Hold open device: Automatic hold open arm with red vinyl grip handle release.
  13. Gasket Seals: Extruded EPDM gasket seals continuous around perimeter of cover and along curb.
  14. Certification: Smoke Vent to have official UL label for testing to UL 793 Smoke and Heat Vents.

2.3Acoustical STC50 Smoke Vents

  1. Description: Nystrom model SVY Acoustical Series smoke vents are STC 50 rated per ASTM E90 and OITC 39 rated per ASTM E 1332,as certified by an independent test laboratory. Meets IBC 1206 code requirements for minimum sound transmission class STC50. Provides superior sound control and thermal performance. Sizes available in double door and quad door construction.
  2. Fabrication:
  3. Cover Assembly: 14 gage galvanneal steel cover and liner. Cover reinforced to meet 40psf live load. Acoustical insulation with sound mat within 4 ¼” thick covers provides total thermal resistance R-14.
  4. Curb/Frame: 14gage galvanneal steel curb. 12” high double wall curb with EZ tab counterflashing and 6½” mounting flange with ½” diameter holes. Acoustical insulation with sound mat contained within 3 ¾” thick curb provides total thermal resistance R-14.
  5. Finish: Cover exterior is ANSI 70 Gray powder coat, cover interior is Black powder coat finish. Curb is Black powder coat finish.
  6. Latch: Positive hold zinc plated steel rotary latch assembly designed to hold covers closed against 90psf wind uplift. Upon latch releases, vent covers are closed manually at rooftop level.
  7. Latch released manually via internal and external pull handles with cables.
  8. Latch released automatically by UL 33 Listed fusible melt-out link at temperature [165F, 212F, 280F, 350F, 360F, 370F, 386F 450F].
  9. Optional latch release with electrical Belimo motor actuator[ 24VDC/AC, 110VAC].
  10. Springs: Gas spring with integrated damper designed to open vent covers automatically against 10 psf snow load.
  11. Hinges: 304 stainless steel heavy duty butt hinge with ¼” pin.
  12. Hold open device: Automatic hold open arm with red vinyl grip handle release.
  13. Gasket Seals: Extruded EPDM gasket seals continuous around perimeter of cover and along curb.
  14. Certification: Smoke Vent to have official UL label for testing to UL 793 Smoke and Heat Vents.

2.4options & Accessories

  1. Burglar Bars, 1/2” diameter steel rod, 6”x12”spacing, securely attached to inside of curb.
  2. Fall protection security mesh: 3/16” diameter steel rod, 4”x4” spacing, securely attached to inside of curb
  3. Manual Winch operation allows remote closing of the smoke vents from the floor area
  4. Optional latch release with electrical Belimo motor actuator[ 24VDC/AC, 110VAC].
  5. Certification: Smoke Vent to have official UL label for testing to UL 793 Smoke and Heat Vents.
  6. 3 button actuated motor operation allows remote closing of smoke vents

PART 3 - EXECUTION

3.1EXAMINATION

  1. Verification of Conditions: Examine areas and conditions under which Work is to be performed and identify conditions detrimental to proper or timely completion.
  2. Verify that deck, curbs, roof membrane, base flashing, and other items affecting Work of this Section are in place and positioned correctly.
  3. Verify tolerances and correct improper conditions.
  4. Do not proceed until unsatisfactory conditions have been corrected.

3.2Installation

  1. Install roof accessory items and components per manufacturer's instructions.
  2. Coordinate installation of components of this Section with installation of roof deck, roof structure, roofing membrane, and base flashing.
  3. Coordinate installation of sealant and roofing cement with Work of this Section to ensure water tightness.
  4. Separate metal from incompatible metal or corrosive substrates, including wood, by coating concealed surfaces, at locations of contact, with bituminous coating or providing other permanent separation.
  5. Flange Seals: Unless otherwise indicated, set flanges of accessory units in a thick bed of roofing cement to form a seal.

3.3Field Quality Control

  1. Smoke Vent Testing: Test for proper operation after installation by one or all of the operational methods:
  2. Melting fusible link for inside at smoke vent level recommend using hand held propane tank torch. Replace fusible link from automatic latching mechanism, then close vents from the exterior at the roof top level.
  3. Pull internal and/or external manual pull handles, then close vents from the exterior at the roof top level.
  4. If applicable; open the vents using an electrical signal for fire alarm, push button or other, then close vent from the exterior at the roof top level.
  5. Do not paint the internal mechanisms, especially moving parts such as spring/dampers, rotary latches and especially the fusible links. Painting any of these components may damage the vents and will void the warranty.

3.4ADJUSTING

  1. Adjust movable parts for smooth operation.
  2. Operational Units: Test-operate units with operable components. Clean and lubricate joints and hardware. Adjust for proper operation.

3.5cleaning

  1. Clean exposed surfaces per manufacturer's written instructions. Touch up damaged metal coatings.

END OF SECTION